Polls of “expert” opinions on when we will develop a technology are not predictors when we will actually develop them. Their opinions could all be skewed in the same direction by missing the same piece of vital information.
For example, they could all be unaware of a particular hurdle that will be difficult to solve, or of an upcoming discovery that makes it possible to bypass problems they assumed to be difficult.
Polls of “expert” opinions on when we will develop a technology are not predictors when we will actually develop them. Their opinions could all be skewed in the same direction by missing the same piece of vital information.
For example, they could all be unaware of a particular hurdle that will be difficult to solve, or of an upcoming discovery that makes it possible to bypass problems they assumed to be difficult.